As the placard on the front states, this was a fan trip by the Illinois Central RR Service Booster Club of Chicago on the CSS with steeplecab #1014 heading it up. #1014 was built by Baldwin/Westinghouse in 1931. Specs - 80-ton, BB wheel configuration, 1600hp. I assume that photo credit goes to "Dunk: :Hanft". This is a new entry in the RRPA data base.